Heat gun



FIG. 1 is a front left, perspective view of a heat gun showing my newdesign;

FIG. 2 is a first side view thereof;

FIG. 3 is a second side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depict portions of the heat gun in which the design isembodied that are not considered part of the claimed design.

CLAIM The ornamental design for a heat gun, as shown and described.